Abstract: The invention concerns a mechanical device (100) for the sequential control of at least two levers for a timepiece mechanism, controlling a first lever (1) and a second (2) lever cooperating with a contact surface (10) in accordance with a sequence wherein each changes from a first torque consumption level (11; 21) to a second, higher level (12; 22) during an increasing phase (14; 24) in which it stores torque, then from said second level (12; 22) to said first level (11; 21) during a decreasing phase (15; 25) in which it transmits energy. The device is wherein it includes delaying means (4) creating, during the decreasing phase (15) of said first lever (1), a stabilizing stage at a third, intermediate level (13) between said first (11) and second (12) levels. The invention also concerns a timepiece incorporating a device (100) of this type.

Abstract: The invention relates to a process for assembly of a crystal and a bezel for use of the crystal as vibrating and radiating element, according to which unconnected junction zones are determined and form the only mechanical link for transmission of vibrations of the bezel to the crystal, on which zones the crystal is secured on the bezel to transmit to the crystal any vibration communicated to the bezel. Outside these zones the crystal is held without direct contact with the bezel. The invention also relates to a crystal-bezel assembly unit for a timepiece comprising junction zones that form the only mechanical link for transmission of vibrations from the bezel to the crystal to cause the crystal to resonate under the action of the vibrations, and outside said junction zones the crystal has no direct contact with the bezel. The invention also relates to a timepiece comprising such a unit.

Abstract: The invention relates to a process for assembly of a crystal and a bezel for use of said crystal as vibrating and radiating element, according to which unconnected junction zones are determined and formed that together form the only mechanical link for the transmission of vibrations of said bezel to said crystal, on which zones said crystal is secured on said bezel in order to transmit to said crystal any vibration communicated to said bezel, and outside these zones said crystal is held without direct contact with said bezel. The invention also relates to a crystal-bezel assembly unit (1) for a timepiece comprising junction zones (4) that together form the only mechanical link for the transmission of vibrations from said bezel (3) to said crystal (2) to cause said crystal (2) to resonate under the action of the vibrations, and outside said junction zones (4) said crystal (2) has no direct contact with said bezel (3). The invention also relates to a timepiece (100) comprising such a unit (1).

Abstract: The invention concerns a mechanical device (100) for the sequential control of at least two levers for a timepiece mechanism, controlling a first lever (1) and a second (2) lever cooperating with a contact surface (10) in accordance with a sequence wherein each changes from a first torque consumption level (11; 21) to a second, higher level (12; 22) during an increasing phase (14; 24) in which it stores torque, then from said second level (12; 22) to said first level (11; 21) during a decreasing phase (15; 25) in which it transmits energy. The device is wherein it includes delaying means (4) creating, during the decreasing phase (15) of said first lever (1), a stabilising stage at a third, intermediate level (13) between said first (11) and second (12) levels. The invention also concerns a timepiece incorporating a device (100) of this type.